The installation steps are quiet simple. OK, before installing the VirtualBox package you must have an idea about it. What is VirtualBox ? What does it mean ? Of-course, It is time that you knew about it! We can simply say that a VirtualBox is a cross-platform Virtualization application. That means, by using VirtualBox we can Install and Run multiple OS(Inside multiple virtual machines) at the same time. So, for example, you can run Windows on your Linux machine, You can run Linux on your Windows, You can run Linux and Windows on your Mac and so on. Some advantages and disadvantages of virtualization. There are some advantages and disadvantages on Virtualization that we need to discuss, some of the advantages and disadvantages are listed below: Advantages: >> Running multiple operating systems simultaneously. >> Easier software installations. >> Testing and disaster recovery. >> Infrastructure consolidation. Disadvantages: >> Disk space and memory limit.